Early survival after acute myocardial infarction with ST-segment elevation: What could be improved? Insights from France PCI French registry.

Early mortality post-ST-segment elevation myocardial infarction (STEMI) in France remains high. The multicentre France Percutaneous Coronary Intervention Registry includes every patient undergoing coronary angiography in France. We analyzed the prevalence and impact of unmodifiable and modifiable risk factors on 30-day survival in patients experiencing STEMI.

Impact of the Lubrizol factory fire in Rouen on coronary events: A retrospective study from the France PCI registry.

Background: On 26 September 2019, an industrial fire occurred in the Lubrizol factory in Rouen (France), exposing the population to the inhalation of many volatile toxic agents secondary to combustion.

Aim: To assess the impact of the Lubrizol factory fire on the incidence of coronary artery events.

Methods: All coronary angiograms performed in Rouen (exposed) and Le Havre (unexposed) from May 2019 to December 2019 were extracted from the prospective France Percutaneous Coronary Intervention (France PCI) registry.

Incidence, delays, and outcomes of STEMI during COVID-19 outbreak: Analysis from the France PCI registry.

Objectives: The aim of this study was to assess the impact of the coronavirus disease 2019 (COVID-19) outbreak on incidence, delays, and outcomes of ST-elevation myocardial infarction (STEMI) patients undergoing primary percutaneous coronary intervention (PPCI) in France.

Methods: We analyzed all patients undergoing PPCI <24 hours STEMI included in the prospective France PCI registry. The 2 groups were compared on mean monthly number of patients, delays in the pathway care, and in-hospital major adverse cardiac events (MACE: death, stent thrombosis, myocardial infarction, unplanned coronary revascularization, stroke, and major bleeding).

Intra-coronary morphine versus placebo in the treatment of acute ST-segment elevation myocardial infarction: the MIAMI randomized controlled trial.

Background: Experimental studies suggest that morphine may protect the myocardium against ischemia-reperfusion injury by activating salvage kinase pathways. The objective of this two-center, randomized, double-blind, controlled trial was to assess potential cardioprotective effects of intra-coronary morphine in patients with ST-segment elevation myocardial infarction (STEMI) referred for primary percutaneous intervention.

Methods: Ninety-one patients with STEMI were randomly assigned to intracoronary morphine (1 mg) or placebo at reperfusion of the culprit coronary artery.

Nanotubular crosstalk with distressed cardiomyocytes stimulates the paracrine repair function of mesenchymal stem cells.

Mesenchymal stem cells (MSC) are known to repair broken heart tissues primarily through a paracrine fashion while emerging evidence indicate that MSC can communicate with cardiomyocytes (CM) through tunneling nanotubes (TNT). Nevertheless, no link has been so far established between these two processes. Here, we addressed whether cell-to-cell communication processes between MSC and suffering cardiomyocytes and more particularly those involving TNT control the MSC paracrine regenerative function.

Usefulness of tissue Doppler imaging for assessing left ventricular filling pressure in patients with stable severe systolic heart failure.

The ratio of early transmitral blood flow velocity over tissue Doppler early diastolic mitral annulus velocity (E/e') was found unreliable for estimating pulmonary capillary wedge pressure (PCWP) in patients with decompensated systolic heart failure (HF). The objective of this study was to test its reliability in stable HF. Therefore, 130 consecutive patients with a left ventricular (LV) ejection fraction of <35% and stable HF underwent right-sided cardiac catheterization and transthoracic echocardiography with measurement of transmitral flow velocities (E, A) and mitral annulus velocities during systole (s') and diastole (e').

Feasibility limits of transradial primary percutaneous coronary intervention in acute myocardial infarction in the real life (TRAP-AMI).

Background: There is growing evidence that transradial (TRI) as compared to transfemoral (TFI) percutaneous coronary intervention (PCI) is associated with improved clinical outcome driven by less hemorrhagic complications, in particular in STEMI patients receiving aggressive antithrombotic treatment. Feasibility rate of TRI in STEMI patients has not yet been evaluated.

Methods/results: Four-hundred seventy-five consecutive STEMI patients (<12h) without cardiogenic shock were prospectively screened for this all-comer single-centre registry between January 2008 and August 2010.

Macrophages improve survival, proliferation and migration of engrafted myogenic precursor cells into MDX skeletal muscle.

Transplantation of muscle precursor cells is of therapeutic interest for focal skeletal muscular diseases. However, major limitations of cell transplantation are the poor survival, expansion and migration of the injected cells. The massive and early death of transplanted myoblasts is not fully understood although several mechanisms have been suggested.

Ambulatory transradial percutaneous coronary intervention: a safe, effective, and cost-saving strategy.

Objectives: The aim of this prospective, multicenter study was to assess the safety, feasibility, acceptance, and cost of ambulatory transradial percutaneous coronary intervention (PCI) under the conditions of everyday practice.

Background: Major advances in PCI techniques have considerably reduced the incidence of post-procedure complications. However, overnight admission still constitutes the standard of care in most interventional cardiology centers.

Pulmonary hemodynamic responses to inhaled NO in chronic heart failure depend on PDE5 G(-1142)T polymorphism.

To evaluate the vasoconstrictor component of PH in CHF by investigating the hemodynamic response to inhaled nitric oxide (iNO) and to determine whether this response was influenced by the phosphodiesterase 5 gene (PDE5) G(1142)T polymorphism. CHF patients underwent right heart catheterization at rest and after 20 ppm of iNO and plasma cGMP and PDE5 G(1142)T polymorphism determinations. Of the 72 included CHF patients (mean age, 53±1 years; mean left ventricular ejection fraction, 29±1%; and mean pulmonary artery pressure, 25.

Daily administration of the TP receptor antagonist terutroban improved endothelial function in high-cardiovascular-risk patients with atherosclerosis.

What Is Already Known About This Subject: • Terutroban is a selective TP receptor antagonist, i.e. a specific antagonist of the thromboxane A(2) and prostaglandin endoperoxide receptors, shown to improve endothelial function after a single administration in patients with coronary artery disease.

Human mesenchymal stem cells reprogram adult cardiomyocytes toward a progenitor-like state through partial cell fusion and mitochondria transfer.

Because stem cells are often found to improve repair tissue including heart without evidence of engraftment or differentiation, mechanisms underlying wound healing are still elusive. Several studies have reported that stem cells can fuse with cardiomyocytes either by permanent or partial cell fusion processes. However, the respective physiological impact of these two processes remains unknown in part because of the lack of knowledge of the resulting hybrid cells.

Impact of bifurcation lesions on clinical outcome and prognosis of primary angioplasty in acute myocardial infarction.

Aims: The aim of this study was to determine the impact of bifurcation lesions on outcomes after primary percutaneous intervention (PCI) for acute myocardial infarction.

Methods And Results: We retrospectively reviewed a single-centre database of 646 patients admitted for primary angioplasty within 12 hours after AMI. We compared baseline characteristics and outcomes between bifurcation and non-bifurcation lesions.

Six-month outcome of emergency percutaneous coronary intervention in resuscitated patients after cardiac arrest complicating ST-elevation myocardial infarction.

Background: The outcome of resuscitated patients after cardiac arrest complicating acute myocardial infarction remains poor, primarily because of the relatively low success rates of cardiopulmonary resuscitation management. Existing data suggest potential beneficial effects of early myocardial reperfusion, but the predictors of survival in these patients remain unknown.

Methods And Results: From 1995 to 2005, 186 patients (78% men; mean age, 60.

Acute improvement in global and regional left ventricular systolic function after percutaneous heart valve implantation in patients with symptomatic aortic stenosis.

Background: The newly developed percutaneous heart valve (PHV) implantation technique decreases transaortic pressure gradient in patients with aortic stenosis. PHV replacement effects on left ventricular (LV) global and regional systolic function are currently unknown.

Methods And Results: Eight patients with severe aortic stenosis had 2D echocardiography at baseline and 24 hours after PHV implantation to evaluate changes in LV volume and LV ejection fraction.